public void TestBitVector()
{
var facit = new bool[9 * 64];
for (int r = 1; r < 8; r++)
{
var sz = r * 64;
var bv = new BitVector(sz);
facit.AsSpan().Clear();
for (int op = 0; op < 10000; op++)
{
var a = PRNG.Next(0, sz);
var t = PRNG.Next(0, 14);
switch (t)
{
case 0:
bv.Clear();
facit.AsSpan().Clear();
break;
case 1:
bv.Set(a, true);
facit[a] = true;
break;
case 2:
case 3:
bv.Set(a);
facit[a] = true;
break;
case 4:
case 5:
case 6:
bv[a] = true;
facit[a] = true;
break;
case 7:
case 8:
bv.Clear(a);
facit[a] = false;
break;
case 9:
bv.Set(a, false);
facit[a] = false;
break;
case 10:
bv[a] = false;
facit[a] = false;
break;
case 11:
case 12:
case 13:
bv.Flip(a);
if (facit[a])
{
facit[a] = false;
}
else
{
facit[a] = true;
}
break;
}
// verify
var cnt = 0;
for (int i = 0; i < sz; i++)
{
Assert.AreEqual(facit[i], bv[i]);
if (facit[i])
{
cnt++;
}
}
Assert.AreEqual(cnt, bv.CountSetBits());
}
}
}